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|
! Demonstrate most pllegend capability including unicode symbols.
!
! Copyright (C) 2010-2016 Alan W. Irwin
!
! This file is part of PLplot.
!
! PLplot is free software; you can redistribute it and/or modify
! it under the terms of the GNU Library General Public License as published
! by the Free Software Foundation; either version 2 of the License, or
! (at your option) any later version.
!
! PLplot is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU Library General Public License for more details.
!
! You should have received a copy of the GNU Library General Public License
! along with PLplot; if not, write to the Free Software
! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
!
! N.B. the pl_test_flt parameter used in this code is only
! provided by the plplot module to allow convenient developer
! testing of either kind(1.0) or kind(1.0d0) floating-point
! precision regardless of the floating-point precision of the
! PLplot C libraries. We do not guarantee the value of this test
! parameter so it should not be used by users, and instead user
! code should replace the pl_test_flt parameter by whatever
! kind(1.0) or kind(1.0d0) precision is most convenient for them.
! For further details on floating-point precision issues please
! consult README_precision in this directory.
!
! This example designed just for devices (e.g., the cairo-related and
! qt-related devices) where the best choice of glyph is automatically
! selected by the related libraries (pango/cairo or Qt4) for each
! unicode character depending on what system fonts are installed. Of
! course, you must have the appropriate TrueType fonts installed to
! have access to all the required glyphs.
!--------------------------------------------------------------------------
! main
!
! Demonstrate most pllegend capability including unicode symbols.
! --------------------------------------------------------------------------
program x33f
use plplot
implicit none
integer, parameter :: MAX_NLEGEND = 7
integer :: i, k
integer :: opt, position
integer :: nlegend, nturn
integer :: opt_array(MAX_NLEGEND)
integer :: text_colors(MAX_NLEGEND)
integer :: box_colors(MAX_NLEGEND)
integer :: box_patterns(MAX_NLEGEND)
real(kind=pl_test_flt) :: box_scales(MAX_NLEGEND)
real(kind=pl_test_flt) :: box_line_widths(MAX_NLEGEND)
integer :: line_colors(MAX_NLEGEND)
integer :: line_styles(MAX_NLEGEND)
real(kind=pl_test_flt) :: line_widths(MAX_NLEGEND)
integer :: symbol_numbers(MAX_NLEGEND), symbol_colors(MAX_NLEGEND)
real(kind=pl_test_flt) :: symbol_scales(MAX_NLEGEND)
character(len=200) :: text(MAX_NLEGEND)
character(len=20) :: symbols(MAX_NLEGEND)
real(kind=pl_test_flt) :: legend_width, legend_height, x, y, xstart, ystart
real(kind=pl_test_flt) :: max_height, text_scale
integer :: opt_base, nrow, ncolumn
integer :: position_options(16)
character(len=3) :: special_symbols(5)
real(kind=pl_test_flt) :: values_small(2)
real(kind=pl_test_flt) :: values_uneven(9)
real(kind=pl_test_flt) :: values_even(9)
integer, parameter :: COLORBAR_KINDS = 4
integer :: colorbar_option_kinds(COLORBAR_KINDS)
character(len=100) :: colorbar_option_kind_labels(COLORBAR_KINDS)
integer, parameter :: COLORBAR_POSITIONS = 4
integer :: colorbar_position_options(COLORBAR_POSITIONS)
character(len=100) :: colorbar_position_option_labels(COLORBAR_POSITIONS)
integer, parameter :: COLORBAR_LABELS = 4
integer :: colorbar_label_options(COLORBAR_LABELS)
character(len=100) :: colorbar_label_option_labels(COLORBAR_LABELS)
integer, parameter :: COLORBAR_CAPS = 4
integer :: colorbar_cap_options(COLORBAR_CAPS)
integer :: plparseopts_rc
character(len=100) :: colorbar_cap_option_labels(COLORBAR_CAPS)
! Pick 5 arbitrary UTF-8 symbols useful for plotting points (✠✚✱✪✽✺✰✴✦).
data special_symbols / &
'✰', &
'✴', &
'✱', &
'✽', &
'✦' /
data values_small / -1.0_pl_test_flt, 1.0_pl_test_flt /
data values_uneven &
/ -1.0_pl_test_flt, 2.0_pl_test_flt, 2.6_pl_test_flt, 3.4_pl_test_flt, &
6.0_pl_test_flt, 7.0_pl_test_flt, 8.0_pl_test_flt, 9.0_pl_test_flt, &
10.0_pl_test_flt /
data values_even &
/ -2.0_pl_test_flt, -1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt, &
2.0_pl_test_flt, 3.0_pl_test_flt, 4.0_pl_test_flt, 5.0_pl_test_flt, &
6.0_pl_test_flt /
real(kind=pl_test_flt), parameter :: small_factor = 1.e-20_pl_test_flt
values_small = small_factor*values_small
values_uneven = small_factor*values_uneven
values_even = small_factor*values_even
position_options(1) = PL_POSITION_LEFT + PL_POSITION_TOP + PL_POSITION_OUTSIDE
position_options(2) = PL_POSITION_TOP + PL_POSITION_OUTSIDE
position_options(3) = PL_POSITION_RIGHT + PL_POSITION_TOP + PL_POSITION_OUTSIDE
position_options(4) = PL_POSITION_RIGHT + PL_POSITION_OUTSIDE
position_options(5) = PL_POSITION_RIGHT + PL_POSITION_BOTTOM + PL_POSITION_OUTSIDE
position_options(6) = PL_POSITION_BOTTOM + PL_POSITION_OUTSIDE
position_options(7) = PL_POSITION_LEFT + PL_POSITION_BOTTOM + PL_POSITION_OUTSIDE
position_options(8) = PL_POSITION_LEFT + PL_POSITION_OUTSIDE
position_options(9) = PL_POSITION_LEFT + PL_POSITION_TOP + PL_POSITION_INSIDE
position_options(10) = PL_POSITION_TOP + PL_POSITION_INSIDE
position_options(11) = PL_POSITION_RIGHT + PL_POSITION_TOP + PL_POSITION_INSIDE
position_options(12) = PL_POSITION_RIGHT + PL_POSITION_INSIDE
position_options(13) = PL_POSITION_RIGHT + PL_POSITION_BOTTOM + PL_POSITION_INSIDE
position_options(14) = PL_POSITION_BOTTOM + PL_POSITION_INSIDE
position_options(15) = PL_POSITION_LEFT + PL_POSITION_BOTTOM + PL_POSITION_INSIDE
position_options(16) = PL_POSITION_LEFT + PL_POSITION_INSIDE
! plcolorbar options
! Colorbar type options
colorbar_option_kinds(1) = PL_COLORBAR_SHADE
colorbar_option_kinds(2) = PL_COLORBAR_SHADE + PL_COLORBAR_SHADE_LABEL
colorbar_option_kinds(3) = PL_COLORBAR_IMAGE
colorbar_option_kinds(4) = PL_COLORBAR_GRADIENT
colorbar_option_kind_labels(1) = "Shade colorbars"
colorbar_option_kind_labels(2) = "Shade colorbars with custom labels"
colorbar_option_kind_labels(3) = "Image colorbars"
colorbar_option_kind_labels(4) = "Gradient colorbars"
! Which side of the page are we positioned relative to?
colorbar_position_options(1) = PL_POSITION_LEFT
colorbar_position_options(2) = PL_POSITION_RIGHT
colorbar_position_options(3) = PL_POSITION_TOP
colorbar_position_options(4) = PL_POSITION_BOTTOM
colorbar_position_option_labels(1) = "Left"
colorbar_position_option_labels(2) = "Right"
colorbar_position_option_labels(3) = "Top"
colorbar_position_option_labels(4) = "Bottom"
! Colorbar label positioning options
colorbar_label_options(1) = PL_COLORBAR_LABEL_LEFT
colorbar_label_options(2) = PL_COLORBAR_LABEL_RIGHT
colorbar_label_options(3) = PL_COLORBAR_LABEL_TOP
colorbar_label_options(4) = PL_COLORBAR_LABEL_BOTTOM
colorbar_label_option_labels(1) = "Label left"
colorbar_label_option_labels(2) = "Label right"
colorbar_label_option_labels(3) = "Label top"
colorbar_label_option_labels(4) = "Label bottom"
! Colorbar cap options
colorbar_cap_options(1) = PL_COLORBAR_CAP_NONE
colorbar_cap_options(2) = PL_COLORBAR_CAP_LOW
colorbar_cap_options(3) = PL_COLORBAR_CAP_HIGH
colorbar_cap_options(4) = PL_COLORBAR_CAP_LOW + PL_COLORBAR_CAP_HIGH
colorbar_cap_option_labels(1) = "No caps"
colorbar_cap_option_labels(2) = "Low cap"
colorbar_cap_option_labels(3) = "High cap"
colorbar_cap_option_labels(4) = "Low and high caps"
! Parse and process command line arguments
plparseopts_rc = plparseopts(PL_PARSE_FULL)
if(plparseopts_rc .ne. 0) stop "plparseopts error"
! Initialize plplot
call plinit
! First page illustrating the 16 standard positions.
call pladv( 0 )
call plvpor( 0.25_pl_test_flt, 0.75_pl_test_flt, 0.25_pl_test_flt, 0.75_pl_test_flt )
call plwind( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
call plbox( 'bc', 0.0_pl_test_flt, 0, 'bc', 0.0_pl_test_flt, 0 )
call plsfont( PL_FCI_SANS, -1, -1 )
call plmtex( 't', 8.0_pl_test_flt, 0.5_pl_test_flt, 0.5_pl_test_flt, &
'The 16 standard legend positions with' )
call plmtex( 't', 6.0_pl_test_flt, 0.5_pl_test_flt, 0.5_pl_test_flt, &
'the same (0.05) offset in x and y' )
nlegend = 1
! Only specify legend data that are required according to the
! value of opt_array for that entry.
opt_base = PL_LEGEND_BACKGROUND + PL_LEGEND_BOUNDING_BOX
opt_array(1) = PL_LEGEND_LINE + PL_LEGEND_SYMBOL
line_styles(1) = 1
line_widths(1) = 1
symbol_scales(1) = 1._pl_test_flt
symbol_numbers(1) = 4
symbols(1) = "#(728)"
! Use monotype fonts so that all legends are the same size.
call plsfont( PL_FCI_MONO, -1, -1 )
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
do k = 1,16
position = position_options(k)
opt = opt_base
text_colors(1) = 1 + mod( k-1, 8 )
line_colors(1) = 1 + mod( k-1, 8 )
symbol_colors(1) = 1 + mod( k-1, 8 )
write( text(1), '(i2.2)' ) k-1
call pllegend( legend_width, legend_height, opt, position, &
0.05_pl_test_flt, 0.05_pl_test_flt, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
enddo
! Second page illustrating effect of nrow, ncolumn for the same legend
! data.
call pladv( 0 )
call plvpor( 0.25_pl_test_flt, 0.75_pl_test_flt, 0.25_pl_test_flt, 0.75_pl_test_flt )
call plwind( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
call plbox( 'bc', 0.0_pl_test_flt, 0, 'bc', 0.0_pl_test_flt, 0 )
call plsfont( PL_FCI_SANS, -1, -1 )
call plmtex( 't', 8.0_pl_test_flt, 0.5_pl_test_flt, 0.5_pl_test_flt, &
'The effect of nrow, ncolumn, PL_LEGEND_ROW_MAJOR,' )
call plmtex( 't', 6.0_pl_test_flt, 0.5_pl_test_flt, 0.5_pl_test_flt, &
'and position for the same legend data' )
nlegend = 7
! Only specify legend data that are required according to the
! value of opt_array for that entry.
opt_base = PL_LEGEND_BACKGROUND + PL_LEGEND_BOUNDING_BOX
do k = 1,nlegend
opt_array(k) = PL_LEGEND_LINE + PL_LEGEND_SYMBOL
line_styles(k) = 1
line_widths(k) = 1
symbol_scales(k) = 1._pl_test_flt
symbol_numbers(k) = 2
symbols(k) = "#(728)"
write( text(k), '(i2.2)' ) k-1
text_colors(k) = 1 + mod( k-1, 8 )
line_colors(k) = 1 + mod( k-1, 8 )
symbol_colors(k) = 1 + mod( k-1, 8 )
enddo
! Use monotype fonts so that all legends are the same size.
call plsfont( PL_FCI_MONO, -1, -1 )
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
position = PL_POSITION_TOP + PL_POSITION_OUTSIDE
opt = opt_base
x = 0._pl_test_flt
y = 0.1_pl_test_flt
nrow = 1
ncolumn = nlegend
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
position = PL_POSITION_BOTTOM + PL_POSITION_OUTSIDE
opt = opt_base
x = 0._pl_test_flt
y = 0.1_pl_test_flt
nrow = 1
ncolumn = nlegend
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
position = PL_POSITION_LEFT + PL_POSITION_OUTSIDE
opt = opt_base
x = 0.1_pl_test_flt
y = 0._pl_test_flt
nrow = nlegend
ncolumn = 1
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
position = PL_POSITION_RIGHT + PL_POSITION_OUTSIDE
opt = opt_base
x = 0.1_pl_test_flt
y = 0._pl_test_flt
nrow = nlegend
ncolumn = 1
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
position = PL_POSITION_LEFT + PL_POSITION_TOP + PL_POSITION_INSIDE
opt = opt_base
x = 0._pl_test_flt
y = 0._pl_test_flt
nrow = 6
ncolumn = 2
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
position = PL_POSITION_RIGHT + PL_POSITION_TOP + PL_POSITION_INSIDE
opt = opt_base + PL_LEGEND_ROW_MAJOR
x = 0._pl_test_flt
y = 0._pl_test_flt
nrow = 6
ncolumn = 2
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
position = PL_POSITION_BOTTOM + PL_POSITION_INSIDE
opt = opt_base + PL_LEGEND_ROW_MAJOR
x = 0._pl_test_flt
y = 0._pl_test_flt
nrow = 3
ncolumn = 3
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.05_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 2.0_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
! Third page demonstrating legend alignment
call pladv( 0 )
call plvpor( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 0.9_pl_test_flt )
call plwind( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsfont( PL_FCI_SANS, -1, -1 )
call plmtex( 't', 2.0_pl_test_flt, 0.5_pl_test_flt, 0.5_pl_test_flt, &
'Demonstrate legend alignment' )
x = 0.1_pl_test_flt
y = 0.1_pl_test_flt
nturn = 5
nlegend = 0
position = PL_POSITION_TOP + PL_POSITION_LEFT + PL_POSITION_SUBPAGE
opt_base = PL_LEGEND_BACKGROUND + PL_LEGEND_BOUNDING_BOX
opt = opt_base
do i = 1,9
! Set up legend arrays with the correct size, type.
if ( i .le. nturn ) then
nlegend = nlegend + 1
else
nlegend = nlegend - 1
endif
nlegend = max( 1, nlegend )
! nly specify legend data that are required according to the
! value of opt_array for that entry.
do k = 1,nlegend
opt_array(k) = PL_LEGEND_LINE + PL_LEGEND_SYMBOL
line_styles(k) = 1
line_widths(k) = 1
symbol_scales(k) = 1._pl_test_flt
symbol_numbers(k) = 2
symbols(k) = "#(728)"
write( text(k), '(i2.2)' ) k-1
text_colors(k) = 1 + mod( k-1, 8 )
line_colors(k) = 1 + mod( k-1, 8 )
symbol_colors(k) = 1 + mod( k-1, 8 )
enddo
! Use monotype fonts so that all legends are the same size.
call plsfont( PL_FCI_MONO, -1, -1 )
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
nrow = MIN( 3, nlegend )
ncolumn = 0
call pllegend( legend_width, legend_height, opt, position, &
x, y, &
0.025_pl_test_flt, 15, 1, 1, nrow, ncolumn, &
opt_array(1:nlegend), 1.0_pl_test_flt, 1.0_pl_test_flt, 1.5_pl_test_flt, &
1._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
if ( i .eq. nturn ) then
position = PL_POSITION_TOP + PL_POSITION_RIGHT + PL_POSITION_SUBPAGE
opt = opt_base
x = 1._pl_test_flt - x
y = y + legend_height
else
x = x + legend_width
y = y + legend_height
endif
enddo
! Fourth page illustrating various kinds of legends
max_height = 0._pl_test_flt
xstart = 0.0_pl_test_flt
ystart = 0.1_pl_test_flt
x = xstart
y = ystart
text_scale = 0.90_pl_test_flt
call pladv( 0 )
call plvpor( 0.0_pl_test_flt, 1._pl_test_flt, 0.0_pl_test_flt, 0.90_pl_test_flt )
call plwind( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
! call plbox('bc', 0.0, 0, 'bc', 0.0_pl_test_flt, 0)
call plsfont( PL_FCI_SANS, -1, -1 )
call plmtex( 't', 2.0_pl_test_flt, 0.5_pl_test_flt, 0.5_pl_test_flt, &
'Demonstrate Various Kinds of Legends' )
nlegend = 5
! Only specify legend data that are required according to the
! value of opt_array for that entry.
position = PL_POSITION_LEFT + PL_POSITION_TOP
opt_base = PL_LEGEND_BACKGROUND + PL_LEGEND_BOUNDING_BOX + PL_LEGEND_TEXT_LEFT
! Set up None, Box, Line, Symbol, and Line & Symbol legend entries.
opt_array(1) = PL_LEGEND_NONE
text(1) = 'None'
text_colors(1) = 1
opt_array(2) = PL_LEGEND_COLOR_BOX
text(2) = 'Box'
text_colors(2) = 2
box_colors(2) = 2
box_patterns(2) = 0
box_scales(2) = 0.8_pl_test_flt
box_line_widths(2) = 1
opt_array(3) = PL_LEGEND_LINE
text(3) = 'Line'
text_colors(3) = 3
line_colors(3) = 3
line_styles(3) = 1
line_widths(3) = 1
opt_array(4) = PL_LEGEND_SYMBOL
text(4) = 'Symbol'
text_colors(4) = 4
symbol_colors(4) = 4
symbol_scales(4) = text_scale
symbol_numbers(4) = 4
symbols(4) = special_symbols(3)
opt_array(5) = PL_LEGEND_SYMBOL + PL_LEGEND_LINE
text(5) = 'L & S'
text_colors(5) = 5
line_colors(5) = 5
line_styles(5) = 1
line_widths(5) = 1
symbol_colors(5) = 5
symbol_scales(5) = text_scale
symbol_numbers(5) = 4
symbols(5) = special_symbols(3)
opt = opt_base
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up symbol legend entries with various symbols.
do i = 1,nlegend
opt_array(i) = PL_LEGEND_SYMBOL
text(i) = 'Symbol ' // special_symbols(i)
text_colors(i) = i
symbol_colors(i) = i
symbol_scales(i) = text_scale
symbol_numbers(i) = 4
symbols(i) = special_symbols(i)
enddo
opt = opt_base
x = x + legend_width
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up symbol legend entries with various numbers of symbols.
do i = 1,nlegend
opt_array(i) = PL_LEGEND_SYMBOL
write( text(i), '(a,i0)' ) 'Symbol Number ', i+1
text_colors(i) = i
symbol_colors(i) = i
symbol_scales(i) = text_scale
symbol_numbers(i) = i + 1
symbols(i) = special_symbols(3)
enddo
opt = opt_base
x = x + legend_width
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up box legend entries with various colours.
do i = 1,nlegend
opt_array(i) = PL_LEGEND_COLOR_BOX
write( text(i), '(a,i0)' ) 'Box Color ', i
text_colors(i) = i
box_colors(i) = i
box_patterns(i) = 0
box_scales(i) = 0.8_pl_test_flt
box_line_widths(i) = 1
enddo
opt = opt_base
! Use new origin
x = xstart
y = y + max_height
max_height = 0._pl_test_flt
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt)
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up box legend entries with various patterns.
do i = 1,nlegend
opt_array(i) = PL_LEGEND_COLOR_BOX
write( text(i), '(a,i0)' ) 'Box Pattern ', i-1
text_colors(i) = 2
box_colors(i) = 2
box_patterns(i) = i - 1
box_scales(i) = 0.8_pl_test_flt
box_line_widths(i) = 1
enddo
opt = opt_base
x = x + legend_width
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up box legend entries with various box pattern line widths.
do i = 1,nlegend
opt_array(i) = PL_LEGEND_COLOR_BOX
write( text(i), '(a,i0)' ) 'Box Line Width ', i
text_colors(i) = 2
box_colors(i) = 2
box_patterns(i) = 3
box_scales(i) = 0.8_pl_test_flt
box_line_widths(i) = i
enddo
opt = opt_base
x = x + legend_width
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up line legend entries with various colours.
do i =1,nlegend
opt_array(i) = PL_LEGEND_LINE
write( text(i), '(a,i0)' ) 'Line Color ', i
text_colors(i) = i
line_colors(i) = i
line_styles(i) = 1
line_widths(i) = 1
enddo
opt = opt_base
! Use new origin
x = xstart
y = y + max_height
max_height = 0._pl_test_flt
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up line legend entries with various styles.
do i = 1,nlegend
opt_array(i) = PL_LEGEND_LINE
write( text(i), '(a,i0)' ) 'Line Style ', i
text_colors(i) = 2
line_colors(i) = 2
line_styles(i) = i
line_widths(i) = 1
enddo
opt = opt_base
x = x + legend_width
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Set up line legend entries with various widths.
do i =1,nlegend
opt_array(i) = PL_LEGEND_LINE
write( text(i), '(a,i0)' ) 'Line Width ', i
text_colors(i) = 2
line_colors(i) = 2
line_styles(i) = 1
line_widths(i) = i
enddo
opt = opt_base
x = x + legend_width
call plscol0a( 15, 32, 32, 32, 0.70_pl_test_flt )
call pllegend( legend_width, legend_height, opt, position, x, y, &
0.1_pl_test_flt, 15, 1, 1, 0, 0, &
opt_array(1:nlegend), 1.0_pl_test_flt, text_scale, 2.0_pl_test_flt, &
0._pl_test_flt, text_colors(1:nlegend), text(1:nlegend), &
box_colors(1:nlegend), box_patterns(1:nlegend), box_scales(1:nlegend), box_line_widths(1:nlegend), &
line_colors(1:nlegend), line_styles(1:nlegend), line_widths(1:nlegend), &
symbol_colors(1:nlegend), symbol_scales(1:nlegend), symbol_numbers(1:nlegend), symbols(1:nlegend) )
max_height = max( max_height, legend_height )
! Color bar examples
! Use unsaturated green background colour to contrast with black caps.
call plscolbg( 70, 185, 70 )
! Cut out the greatest and smallest bits of the color spectrum to
! leave colors for the end caps.
call plscmap1_range( 0.01_pl_test_flt, 0.99_pl_test_flt )
! We can only test image and gradient colorbars with two element arrays
do i = 2,COLORBAR_KINDS-1
call plcolorbar_example( "cmap1_blue_yellow.pal", i, 0, 0._pl_test_flt, 2, values_small )
enddo
! Test shade colorbars with larger arrays
do i = 0,1
call plcolorbar_example( "cmap1_blue_yellow.pal", i, 4, 2._pl_test_flt, 9, values_even )
enddo
do i = 0,1
call plcolorbar_example( "cmap1_blue_yellow.pal", i, 0, 0._pl_test_flt, 9, values_uneven )
enddo
call plend()
contains
subroutine plcolorbar_example_page( kind_i, label_i, cap_i, cont_color, cont_width, n_values, values )
use plplot
implicit none
integer :: kind_i, label_i, cap_i, cont_color, n_values
real(kind=pl_test_flt) :: cont_width
real(kind=pl_test_flt), dimension(:) :: values
! Parameters for the colorbars on this page
integer :: position_i, position, opt
real(kind=pl_test_flt) :: x, y, x_length, y_length;
real(kind=pl_test_flt) :: ticks(1)
integer :: sub_ticks(1)
real(kind=pl_test_flt) :: low_cap_color, high_cap_color
logical :: vertical, ifn
character(len=20) :: axis_opts(1)
integer :: label_opts(1)
character(len=200) :: labels(1)
character(len=200) :: title
real(kind=pl_test_flt) :: colorbar_width, colorbar_height
integer :: n_values_array(1);
real(kind=pl_test_flt), allocatable, dimension(:,:) :: values_array
ticks(1) = 0.0_pl_test_flt
sub_ticks(1) = 0
label_opts(1) = 0
n_values_array(1) = n_values
allocate(values_array(1,n_values))
values_array(1,:) = values(:)
low_cap_color = 0.0_pl_test_flt;
high_cap_color = 1.0_pl_test_flt;
! Start a new page
call pladv( 0 )
! Draw one colorbar relative to each side of the page
do position_i = 0,COLORBAR_POSITIONS-1
position = colorbar_position_options(position_i+1);
opt = ior( &
colorbar_option_kinds(kind_i+1), &
ior(colorbar_label_options(label_i+1), &
colorbar_cap_options(cap_i+1) ) )
vertical = (iand(position, PL_POSITION_LEFT) > 0 .or. iand(position, PL_POSITION_RIGHT) > 0 )
ifn = (iand(position, PL_POSITION_LEFT) > 0 .or. iand(position, PL_POSITION_BOTTOM) > 0 )
! Set the offset position on the page
if (vertical .eqv. .true.) then
x = 0.0_pl_test_flt
y = 0.0_pl_test_flt
x_length = 0.05_pl_test_flt
y_length = 0.5_pl_test_flt
else
x = 0.0_pl_test_flt
y = 0.0_pl_test_flt
x_length = 0.5_pl_test_flt
y_length = 0.05_pl_test_flt
endif
! Set appropriate labelling options.
if (ifn .eqv. .true.) then
if ( cont_color .eq. 0 .or. cont_width .eq. 0._pl_test_flt ) then
axis_opts(1) = "uwtivn"
else
axis_opts(1) = "uwxvn"
endif
else
if ( cont_color .eq. 0 .or. cont_width .eq. 0._pl_test_flt ) then
axis_opts(1) = "uwtivm"
else
axis_opts(1) = "uwxvm"
endif
endif
write(labels(1), '(3A)') trim(colorbar_position_option_labels(position_i+1)), &
', ', trim(colorbar_label_option_labels(label_i+1))
! Smaller text
call plschr( 0.0_pl_test_flt, 0.75_pl_test_flt )
! Small ticks on the vertical axis
call plsmaj( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plvpor( 0.20_pl_test_flt, 0.80_pl_test_flt, 0.20_pl_test_flt, 0.80_pl_test_flt )
call plwind( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
! Set interesting background colour.
call plscol0a( 15, 0, 0, 0, 0.20_pl_test_flt )
call plcolorbar( colorbar_width, colorbar_height, &
ior(opt, ior(PL_COLORBAR_BOUNDING_BOX, PL_COLORBAR_BACKGROUND)), position, &
x, y, x_length, y_length, &
15, 1, 1, &
low_cap_color, high_cap_color, &
cont_color, cont_width, &
label_opts, labels, &
axis_opts, ticks, sub_ticks, &
n_values_array, values_array )
! Reset text and tick sizes
call plschr( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmaj( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 1.0_pl_test_flt )
enddo
! Draw a page title
write(title, '(3A)') trim(colorbar_option_kind_labels(kind_i+1)), ' - ', &
trim(colorbar_cap_option_labels(cap_i+1))
call plvpor( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
call plwind( 0.0_pl_test_flt, 1.0_pl_test_flt, 0.0_pl_test_flt, 1.0_pl_test_flt )
call plptex( 0.5_pl_test_flt, 0.5_pl_test_flt, 0.0_pl_test_flt, 0.0_pl_test_flt, 0.5_pl_test_flt, title )
deallocate(values_array)
end subroutine plcolorbar_example_page
subroutine plcolorbar_example( palette, kind_i, cont_color, cont_width, n_values, values )
character(*) :: palette
integer :: kind_i, label_i, cap_i, cont_color, n_values
real(kind=pl_test_flt) :: cont_width
real(kind=pl_test_flt), dimension(:) :: values
! Load the color palette
call plspal1( palette, .true. )
do label_i = 0,COLORBAR_LABELS-1
do cap_i = 0,COLORBAR_CAPS-1
call plcolorbar_example_page( kind_i, label_i, cap_i, &
cont_color, cont_width, &
n_values, values )
enddo
enddo
end subroutine plcolorbar_example
end program x33f
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